Azbil SDC15 User Manual

4-7
■ Connection with SSR (solid state relay)
To drive the SSR, a model having voltage pulse outputs (control output code is
V0, VC, or VV) must be used.
Generally, the SSR is classified into two groups, constant current type and resistor
type. The following describes how to connect each type.
● Constant current type
The following specifications of the SSR you are using and the specifications of the
voltage pulse output must be investigated:
• Input current (maximum): When the input current is the maximum
allowable current or less, the parallel
connection can be made.
• Operating voltage range (input): Check that the voltage between the terminals
of the voltage pulse output is within the
specified range.
1. Azbil Corporation's PGM10N/PGM10F series
This example shows the calculation for the connection of the SDC15 and the
PGM10N015.
(Note: For connection with other model number, check the specifications of each
model.)
• Input current: Since the input current is 10mA or less, up to
two units (10mA X 2 = 20mA < 24mA
[maximum allowable current]) can be
connected in parallel.
• Operating voltage range (input): The rating voltage is 3.5 to 30Vdc. Therefore,
the voltage between the terminals is within the
range.
Voltage between terminals (two PGM10N units)
= Open voltage - internal resistance X total drive current
= 19Vdc ±15% - 82Ω ±0.5% X 20mA
15 to 20V
Connection diagram
Number of connectable units
(Note) 2 units for each output
=
Chapter 4. WIRING
This unit
+
–
+
–
PGM10N/PGM10F
+
–
PGM10N/PGM10F
SSR to be used Connection V0/VC model VV model
Azbil Corporation PGM10N Parallel connection Up to 2 units Up to 4 units (Note)
Azbil Corporation PGM10F Parallel connection Up to 2 units Up to 4 units (Note)

Azbil SDC15 Specifications

General

Brand	Azbil
Model	SDC15
Category	Controller
Language	English